chore(deps): update dependency coverage to >=7.12,<7.13 (#595)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [coverage](https://redirect.github.com/coveragepy/coveragepy) |
`>=7.11,<7.12` -> `>=7.12,<7.13` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/coverage/7.12.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/coverage/7.11.3/7.12.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>coveragepy/coveragepy (coverage)</summary>

###
[`v7.12.0`](https://redirect.github.com/coveragepy/coveragepy/blob/HEAD/CHANGES.rst#Version-7120--2025-11-18)

[Compare
Source](https://redirect.github.com/coveragepy/coveragepy/compare/7.11.3...7.12.0)

- The HTML report now shows separate coverage totals for statements and
branches, as well as the usual combined coverage percentage. Thanks to
Ryuta
Otsuka for the `discussion <issue 2081_>`\_ and the `implementation
<pull 2085_>`\_.

- The JSON report now includes separate coverage totals for statements
and
  branches, thanks to `Ryuta Otsuka <pull 2090_>`\_.

- Fix: `except*` clauses were not handled properly under the "sysmon"
measurement core, causing KeyError exceptions as described in `issue
2086`\_.
  This is now fixed.

- Fix: we now defend against aggressive mocking of `open()` that could
cause
errors inside coverage.py. An example of a failure is in `issue 2083`\_.

- Fix: in unusual cases where a test suite intentionally exhausts the
system's
file descriptors to test handling errors in `open()`, coverage.py would
fail when trying to open source files, as described in `issue 2091`\_.
This
  is now fixed.

- A small tweak to the HTML report: file paths now use thin spaces
around
  slashes to make them easier to read.

.. \_issue 2081:
[#&#8203;2081](https://redirect.github.com/coveragepy/coveragepy/issues/2081)
.. \_issue 2083:
[#&#8203;2083](https://redirect.github.com/coveragepy/coveragepy/issues/2083)
.. \_pull 2085:
[#&#8203;2085](https://redirect.github.com/coveragepy/coveragepy/pull/2085)
.. \_issue 2086:
[#&#8203;2086](https://redirect.github.com/coveragepy/coveragepy/issues/2086)
.. \_pull 2090:
[#&#8203;2090](https://redirect.github.com/coveragepy/coveragepy/pull/2090)
.. \_issue 2091:
[#&#8203;2091](https://redirect.github.com/coveragepy/coveragepy/issues/2091)

.. \_changes\_7-11-3:

</details>

---

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setup.py

@@ -46,7 +46,7 @@
             "watchdog>=6,<6.1",
         ],
         "test": [
-            "coverage>=7.11,<7.12",
+            "coverage>=7.12,<7.13",
             "pylint>=4,<4.1",
             "pytest>=9,<9.1",
             "pytest-cov>=7,<7.1",